Automatic stator winding device for large generator

Abstract

The present invention relates to the technical field of generator stator processing, and specifically discloses an automatic stator winding device for a large generator, including a frame and a winding shaft, wherein the winding shaft is mounted on the frame, a winding clamp is provided below the winding shaft, a stator body is mounted on the top of the winding clamp, a moving part is slidably mounted on the outer wall of the winding shaft, two clamps are mounted on the top of the moving part, a lubrication mechanism is mounted on the top of the two clamps, and a protective mechanism is mounted on the winding shaft. In the invention, when the winding machine is working, if the copper wire breaks when passing through the wire nozzle, the copper wire can be clamped by two clamps, and then the moving part is driven by a first electric slider to move, and the subsequent copper wire is clamped and transported, so that the broken part of the copper wire can be moved out of the wire nozzle, without stopping the winding machine and manually taking it out of the wire nozzle; and the end of the copper wire that moves out can be clamped by two clamps and wound on the surface of the winding column to avoid affecting the working efficiency of the winding machine.

Description

Technical Field

[0001] The invention relates to an automatic winding device, in particular to an automatic stator winding device for a large generator, and belongs to the technical field of generator stator processing. Background Art

[0002] The motor stator is an important part of motors such as generators and starters. The stator is an important part of the motor. The stator consists of three parts: the stator core, the stator winding and the frame. The stator winding refers to the winding installed on the stator, that is, the copper wire wound on the stator. Winding is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups. Winding is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups. Motors can be divided into centralized and distributed types according to the shape of coil winding and the embedded wiring method. The winding and embedding of centralized windings are relatively simple, but the efficiency is low and the operating performance is also poor. Most of the stators of AC motors use distributed windings. According to different machine types, models and coil embedding process conditions, the motors are designed with different winding types and specifications.

[0003] In the prior art, a winding machine is usually used to automatically wind copper wire on a stator to produce an electronic winding. When the winding machine is working, the copper wire is wound on the surface of the stator through the guidance of a wire nozzle. When the copper wire moves close to the wire nozzle, the wire nozzle pulls the copper wire up and down. At this time, a large friction force is generated between the copper wire and the wire nozzle. Due to many factors such as uneven quality of the copper wire, too fast winding speed or excessive pulling force of the winding machine, the copper wire is easily damaged or broken during contact with the wire nozzle. On the one hand, the working efficiency of the winding machine is reduced, and on the other hand, the qualification rate of the wound stator winding is indirectly reduced. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide an automatic stator winding device for a large generator.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stator automatic winding device for a large generator comprises a frame and a winding shaft, wherein the winding shaft is mounted on the frame, a winding clamp is further provided below the winding shaft, a stator body is clamped and mounted on the top of the winding clamp, a moving part is slidably mounted on the outer wall of the winding shaft, two clamping plates for limiting and clamping copper wires are mounted on the top of the moving part, a lubrication mechanism for cleaning and lubricating the surface of the copper wires is mounted on the top of the two clamping plates, and a protection mechanism for protecting the winding clamp is further mounted on the lower end of the winding shaft.

[0007] Optionally, a movable seat is slidably installed at the bottom end of the winding shaft, a guide wheel is rotatably installed inside the movable seat, a rotating frame is rotatably installed on the winding shaft below the guide wheel, and a wire nozzle is detachably installed on the bottom end of the rotating frame through two limit bolts.

[0008] Optionally, the outer wall of the winding shaft is provided with two slide grooves, the inner wall of the movable member is provided with a first electric slider which can move up and down in the two slide grooves, the top of the movable member is provided with a circular groove, and the inside of the circular groove is provided with a second electric slider.

[0009] Optionally, a fixed block is installed on the top of the second electric slider, and a rotating plate is installed on the outer wall of the fixed block away from the winding shaft through a rotating shaft, and one end of the two clamping plates close to the winding shaft is hinged to the outer wall of the rotating plate.

[0010] Optionally, the lubrication mechanism includes two semi-cylindrical shells, which can be connected and assembled into a cylindrical shell, and the two shells are provided with a groove for the copper wire to be inserted on the side close to each other, and the inside of the two shells is provided with a chamber for containing lubricating oil, and the inner bottom surfaces of the two chambers are equipped with sealing blocks through springs, and the outer walls of the two sealing blocks on the side away from the springs are equipped with abutment blocks, and the inner walls of the grooves of the two shells are provided with oil outlets for the abutment blocks to move.

[0011] Optionally, the top ends of the two shells are both conical, and cleaning pads are installed on the outer walls of the two shells close to the conical top ends.

[0012] Optionally, a lubrication box is installed on the top of the frame, an oil pipeline is installed on the outer wall of the lubrication box on one side close to the two shells, and oil filling ports compatible with the oil pipeline are opened on the tops of the two shells.

[0013] Optionally, the protection mechanism includes two support plates, which are symmetrically hinged on the outer wall of the bottom end of the winding shaft, and air bags in the shape of a quarter circle are installed on the outer walls on both sides opposite to each other.

[0014] Optionally, an arc groove is formed at one end of the two support plates away from the hinged portion, and the two arc grooves are adapted to the winding column at the top end of the winding fixture.

[0015] Optionally, contact switches are installed at the bottom end of the winding shaft near the two support plates, and when the movable member moves downward to the bottom end of the slide slot through the first electric slider, the movable member can press the two contact switches.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, when the winding machine is working, if the copper wire breaks when passing through the wire nozzle, the winding machine cannot automatically wind the copper wire around the surface of the stator. At this time, the copper wire can be clamped by two clamping plates, and the first electric slider drives the moving part to move downward on the outer wall of the winding shaft to clamp and transport the subsequent copper wire downward, so that the broken part of the copper wire can be moved out of the wire nozzle, and there is no need to stop the winding machine and manually take it out from the wire nozzle; and the two clamping plates can be driven by the second electric slider to move in the circular groove to approach the end of the copper wire extending out, and the two clamping plates are used to clamp and guide the end of the copper wire that moves out, and after guiding it to the vicinity of the winding post close to the winding clamp, the two clamping plates are used to wind the broken copper wire around the surface of the winding post, so that the copper wire can continue to be wound around the surface of the stator, thereby avoiding affecting the working efficiency of the winding machine.

[0018] 2. In the invention, when the winding shaft drives the copper wire to wind around the surface of the stator, the copper wire also passes through the shells on the top of the two clamps, and squeezes the abutment blocks installed on the inner walls of the two shells, driving the sealing block in the chamber away from the oil outlet. The lubricating oil inside the two shells can be discharged from the oil outlet and adhere to the surface of the copper wire, which has a certain lubricating effect on the copper wire, avoiding the paint film on the outer surface of the copper wire being scratched during the process of winding around the stator surface, resulting in the hidden danger of ignition failure when the generator is used subsequently.

[0019] 3. In the invention, after the winding machine is used, the staff needs to clean it. When cleaning the wire nozzle, the rotating plate can be rotated downward with the rotating shaft as the center, so that the shell originally located above the two clamping plates is rotated to the bottom, and the first electric slider drives the moving part and the two shells to move downward together. The rotating frame at the bottom of the winding shaft can be controlled to drive the wire nozzle to rotate to a vertical state. At this time, the two shells moving downward can be inserted into the inside of the wire nozzle to clean up the debris inside the wire nozzle. At this time, the original oil filling port of the two shells moving downward can discharge the lubricating oil to lubricate the guide wheel and the inside of the wire nozzle, which is convenient for the next use of the winding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of an automatic stator winding device for a large generator proposed by the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the middle stator being taken out from the winding fixture;

[0023] Figure 3 It is a schematic diagram of the structure of the frame and the winding shaft in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the guide wheel and the thread nozzle in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the moving part, the fixed block and the clamping plate in the present invention;

[0026] Figure 6 It is a structural cross-sectional view of the shell in the present invention.

[0027] In the figure: 1. frame; 2. winding fixture; 3. stator body; 4. winding shaft; 5. lubrication box; 6. moving part; 7. wire nozzle; 8. copper wire; 9. oil pipeline; 10. shell; 11. oil filling port; 12. cleaning pad; 13. slideway; 14. airbag; 15. support plate; 16. contact switch; 17. clamping plate; 18. arc groove; 19. moving seat; 20. guide wheel; 21. rotating frame; 22. first electric slider; 23. circular groove; 24. second electric slider; 25. fixed block; 26. rotating plate; 27. oil outlet; 28. spring; 29. ​​sealing block; 30. abutment block. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Reference Figure 1-Figure 6 A stator automatic winding device for a large generator comprises a frame 1 and a winding shaft 4, the winding shaft 4 is mounted on the frame 1, a winding fixture 2 is further provided below the winding shaft 4, a stator body 3 is clamped and mounted on the top of the winding fixture 2, a moving part 6 is slidably mounted on the outer wall of the winding shaft 4, two clamping plates 17 for limiting and clamping a copper wire 8 are mounted on the top of the moving part 6, and a lubrication mechanism for cleaning and lubricating the surface of the copper wire 8 is mounted on the top of the two clamping plates 17, and a protective mechanism for protecting the winding fixture 2 is further installed at the lower end of the winding shaft 4.

[0030] As a technical optimization scheme of the present invention, a movable seat 19 is slidably installed at the bottom end of the winding shaft 4, a guide wheel 20 is rotatably installed inside the movable seat 19, and a rotating frame 21 is rotatably installed below the guide wheel 20 on the winding shaft 4. The bottom end of the rotating frame 21 is detachably installed with a wire nozzle 7 through two limit bolts. After one end of the copper wire 8 passes through the guide wheel 20 and the wire nozzle 7, it is wound with the winding column at the top of the winding fixture 2, and then the frame 1 drives the winding shaft 4 to move, and the copper wire 8 is wound around the outer wall of the stator body 3 to assemble into a stator winding; the wire nozzle 7 is installed on the rotating frame 21 through a limit thread, which is convenient for quickly removing and replacing the wire nozzle 7 that is severely worn.

[0031] As a technical optimization solution of the present invention, two slide grooves 13 are provided on the outer wall of the winding shaft 4, and a first electric slider 22 that can move up and down in the two slide grooves 13 is installed on the inner wall of the movable part 6. A circular groove 23 is provided on the top of the movable part 6, and a second electric slider 24 is installed inside the circular groove 23.

[0032] As a technical optimization solution of the present invention, a fixed block 25 is installed on the top of the second electric slider 24, and a rotating plate 26 is installed on the outer wall of the fixed block 25 away from the winding shaft 4 through a rotating shaft, and one end of the two clamping plates 17 close to the winding shaft 4 is hinged to the outer wall of the rotating plate 26. When the copper wire 8 passes through the frame 1 and drives the winding shaft 4 to be wound on the surface of the stator body 3, it will also pass through the two clamping plates 17. The two clamping plates 17 can have a certain supporting and guiding effect on the copper wire 8, and in the process of the frame 1 driving the winding shaft 4 to move downward, the copper wire 8 will be affected by the tension. For example, if the quality of the copper wire 8 is poor, the winding speed is too fast or the tension is too large, resulting in the copper wire 8 being broken near the wire nozzle 7, the two clamping plates 17 hinged on the outer wall of the rotating plate 26 can rotate in a direction close to each other to tightly clamp the copper wire 8, and drive the moving part 6 to move downward in the slide groove 13 through the two first electric sliders 22, and synchronously drive the two clamping plates 17 installed above the moving part 6 to move downward, driving the copper wire 8 clamped by the two clamping plates 17 to continue to move downward, so that the broken copper wire 8 near the wire nozzle 7 can be repaired with the help of the two first electric sliders 22. The copper wire 8 that moves subsequently moves out from the wire nozzle 7, and after the copper wire 8 moves out from the wire nozzle 7, the two clamps 17 can rotate in the direction away from each other and no longer clamp the copper wire 8. The second electric slider 24 located inside the movable member 6 can drive the fixed block 25 on its top and the two clamps 17 to move in the circular groove 23 to a position close to the protruding end of the copper wire 8. The two clamps 17 clamp the end of the copper wire 8 again and pull the copper wire 8 toward the winding column at the top of the winding fixture 2. The frame 1 controls the movement of the winding shaft 4, so that after the two clamps 17 clamp the end of the copper wire 8, the copper wire 8 is wound on the surface of the winding column, which makes it convenient for the subsequent winding shaft 4 to continue to wind the copper wire 8 on the surface of the stator body 3, thereby avoiding the problem of the copper wire 8 breaking during use and reducing the working efficiency of the winding machine.

[0033] As a technical optimization scheme of the present invention, the lubrication mechanism includes two semi-cylindrical shells 10, and the two semi-cylindrical shells 10 can be connected and assembled into a cylindrical shell 10. The two shells 10 are close to each other on one side and are provided with a groove for the copper wire 8 to be inserted. The interiors of the two shells 10 are provided with a chamber for containing lubricating oil. The inner bottom surfaces of the two chambers are provided with sealing blocks 29 through springs 28. The outer walls of the two sealing blocks 29 on the side away from the springs 28 are provided with abutment blocks 30. The inner walls of the grooves of the two shells 10 are provided with oil outlets 27 for the abutment blocks 30 to move.

[0034] As a technical optimization solution of the present invention, the top ends of the two shells 10 are both conical, and cleaning pads 12 are installed on the outer walls of the two shells 10 near the conical top ends.

[0035] As a technical optimization solution of the present invention, a lubrication box 5 is installed on the top of the frame 1, and an oil pipe 9 is installed on the outer wall of the lubrication box 5 near the two shells 10. The tops of the two shells 10 are provided with oil filling ports 11 that are compatible with the oil pipe 9. Since the shells 10 are respectively installed on the tops of the two clamps 17, the copper wire 8 will also pass through the groove between the two shells 10 in the process of passing through the two clamps 17. The grooves of the two shells 10 are provided with oil outlets 27, and the oil outlets 27 are provided with abutment blocks 30. When there is no copper wire 8 passing between the two shells 10, the springs 28 set in the internal chambers of the two shells 10 are in a stress-free state, so that the sealing block 29 installed at one end of the spring 28 near the oil outlet 27 and the oil outlet 27 are in contact with each other. The inner wall of the stator body 3 abuts against each other to block the oil outlet 27, and the end of the abutment block 30 away from the sealing block 29 also passes through the oil outlet 27 and extends into the groove. When the winding shaft 4 drives the copper wire 8 to be wound around the surface of the stator body 3, the copper wire 8 will squeeze the two abutment blocks 30 during the process of passing between the two shells 10, thereby driving the spring 28 to be in a compressed state, so that the sealing block 29 moves in a direction away from the oil outlet 27, and the lubricating oil inside the chamber can be discharged to the surface of the copper wire 8 through the oil outlet 27, which is conducive to the copper wire 8. Lubrication is performed to avoid scratches on the surface of the copper wire 8, thereby indirectly improving the yield rate of the stator winding; after the lubricating oil inside the two shells 10 is used up, the two shells 10 can be driven to move upward by the first electric slider 22 until the oil filling port 11 opened on the top of the two shells 10 is plugged into the oil delivery pipe 9 on the outer wall of the lubrication box 5, and the lubricating oil inside the lubrication box 5 can be replenished in the interior of the two shells 10 in time, so as to continue to lubricate the copper wire 8; and in order to ensure the cleanliness of the lubricating oil inside the two shells 10, the first electric slider 22 can be used to drive the two shells 10 to move upward during actual use, until the bottom end of the oil delivery pipe 9 is just plugged into the inside of the two oil filling ports 11, and the oil delivery pipe 9 can block the oil filling ports 11 of the two shells 10 to prevent external dust from entering the chamber from the oil filling port 11 and contaminating the lubricating oil, and can also prevent the lubricating oil inside the chamber from being exposed from the oil filling port 11 during the process of the frame 1 driving the winding shaft 4 to move up and down after the oil filling port 11 is blocked.After the winding machine is finished, the staff needs to clean its surface and the wire nozzle 7. Since the wire nozzle 7 is small in size and it is inconvenient to clean the inside, the rotating frame 21 can be controlled to drive the wire nozzle 7 to rotate toward the two clamping plates 17, so that the wire nozzle 7 can be in a vertical state after rotation, and then the rotating plate 26 is controlled to rotate 180 degrees downward with the rotating shaft as the center, so that the shell 10 originally located on the top of the two clamping plates 17 will be located under the two clamping plates 17 after rotation, and after the two shells 10 are located under the clamping plates 17, they are in the same straight line with the vertical wire nozzle 7, and the two clamping plates 17 and the two shells 10 are driven by the first electric slider 22 to move downward together until the bottom ends of the two shells 10 extend into the interior of the wire nozzle 7. Since the cleaning pads 12 are installed near the conical positions of the two shells 10, the cleaning pads 12 can be extended into the wire nozzle 7 by the two shells 10. After the winding machine is finished, when there is still a small amount of lubricating oil remaining in the two shells 10, in order to avoid the deterioration and waste of this part of the lubricating oil in the shells 10 for a long time, the two shells 10 can be rotated to the bottom of the splint 17, so that the oil filling port 11 originally located at the top of the two shells 10 is transformed into an oil discharge port, and the remaining lubricating oil in the two shells 10 can be discharged downward through the oil filling port 11 located at the bottom end at this time, and drip onto the surface of the guide wheel 20 and the inside of the wire nozzle 7, so as to lubricate the guide wheel 20 and the wire nozzle 7, and facilitate the next use of the guide wheel 20 and the wire nozzle 7 to guide and transport the copper wire 8.

[0036] As a technical optimization solution of the present invention, the protection mechanism includes two support plates 15, which are symmetrically hinged on the bottom outer wall of the winding shaft 4, and the opposite side outer walls of the two support plates 15 are equipped with quarter-circular airbags 14.

[0037] As a technical optimization solution of the present invention, an arc groove 18 is formed at one end of the two support plates 15 away from the hinged portion, and the two arc grooves 18 are adapted to the winding column at the top of the winding fixture 2 .

[0038] As a technical optimization scheme of the present invention, contact switches 16 are installed at the bottom end of the winding shaft 4 near the two support plates 15. When the movable member 6 moves downward to the bottom end of the slide slot 13 through the first electric slider 22, the movable member 6 can press the two contact switches 16. After the winding machine is cleaned, in order to maintain the cleanliness of the guide wheel 20 and the wire nozzle 7 at the bottom end of the winding shaft 4 and the winding fixture 2, the movable member 6 can be driven by the first electric slider 22 to move downward to the bottom end of the winding shaft 4, and the two contact switches 16 set at the bottom end of the winding shaft 4 can be pressed to control the driving mechanism inside the winding shaft 4 to start, and drive the two support plates 15 to rotate downward to an inclined state, so that the end of the two support plates 15 away from the hinged part is the lower end, and the end of the two support plates 15 close to the hinged part is the higher end, and then the external inflator is used to control the internal driving mechanism of the winding shaft 4 to start. The airbags 14 on both sides of the two support plates 15 are inflated, so that after the four airbags 14 are inflated, they can be surrounded to form an umbrella-shaped protective cover to protect the guide wheel 20, the wire mouth 7 and the winding fixture 2, so as to prevent external dust from adhering to the surfaces of the guide wheel 20, the wire mouth 7 and the winding fixture 2, thereby affecting the subsequent winding work on the stator body 3; and after the four airbags 14 form the umbrella-shaped protective cover, the two clamping plates 17 can be controlled to rotate in a direction away from each other to be in an open state, and the winding shaft 4 can be controlled to shake up and down by the frame 1 to adhere the two clamping plates 17 and the two shells 10. The mixture of attached lubricating oil and debris is shaken off to avoid subsequent contamination of the copper wire 8; and the mixture falling on the top of the airbag 14 can also move from the top of the airbag 14 to a position away from the winding fixture 2 as the winding shaft 4 shakes up and down, avoiding the secondary contamination of the surface of the winding machine by this part of debris; after the winding machine finishes working, the two support plates 15 can also be controlled to rotate downward, and after the multiple airbags 14 are in an expanded and docked state, the arc groove 18 at one end of the two support plates 15 away from the hinged part is in contact with the winding column at the top of the winding fixture 2, While the guide wheel 20, the wire nozzle 7 and the winding clamp 2 are dust-proof, even if the staff forgets to turn off the power after work, other people may accidentally touch the winding machine when passing by the winding machine, causing the frame 1 to drive the winding shaft 4 to move. However, since the two support plates 15 are respectively abutted against two of the winding columns, the position of the winding shaft 4 can be limited and fixed, avoiding the staff from accidentally touching the winding machine switch and moving the winding shaft 4, causing the winding shaft 4 and the wire nozzle 7 to collide with other parts and cause damage, and it also has a protective effect on the winding machine itself.

[0039] In the present invention, when the frame 1 drives the winding shaft 4 to move downward, the copper wire 8 will be affected by the tension. For example, when the quality of the copper wire 8 is poor, the winding speed is too fast or the tension is too large, resulting in the copper wire 8 breaking near the wire mouth 7, the two clamping plates 17 can tightly clamp the copper wire 8 and drive the two clamping plates 17 to move downward through the first electric slider 22, so that the copper wire 8 broken near the wire mouth 7 can move out from the inside of the wire mouth 7 along with the subsequent moving copper wire 8. Then, the two clamping plates 17 can be moved to a position close to the protruding end of the copper wire 8 through the second electric slider 24, and then the two clamping plates 17 clamp the end of the copper wire 8 and pull the copper wire 8 toward the winding column at the top of the winding fixture 2, so that the copper wire 8 is wound on the surface of the winding column, thereby facilitating the subsequent winding shaft 4 to continue to wind the copper wire 8 on the surface of the stator body 3, thereby avoiding the problem of the copper wire 8 breaking during use and reducing the working efficiency of the winding machine.

[0040] When passing through the two clamping plates 17, the copper wire 8 will also pass through between the two shells 10, squeezing the two abutment blocks 30, thereby driving the spring 28 to be in a compressed state, causing the sealing block 29 to move away from the oil outlet 27. The lubricating oil inside the chamber can be discharged to the surface of the copper wire 8 through the oil outlet 27, lubricating the copper wire 8 and avoiding scratches on the surface of the copper wire 8, thereby indirectly improving the yield rate of the stator winding.

[0041] After the winding machine is finished, the staff needs to clean its surface and the wire nozzle 7. The rotating frame 21 can be controlled to drive the wire nozzle 7 to a vertical state, and then the rotating plate 26 can be controlled to drive the two clamping plates 17 and the two shells 10 to rotate downward 180 degrees, so that they are in the same straight line with the vertical wire nozzle 7. The two shells 10 are driven downward by the first electric slider 22 until the bottom ends of the two shells 10 extend into the interior of the wire nozzle 7. The cleaning pads 12 on the outer walls of the two shells 10 can be used to clean the internal debris of the wire nozzle 7. There is no need to spend a long time manually cleaning it, thereby improving the cleaning efficiency; and the small amount of lubricating oil remaining in the two shells 10 can be discharged downward through the oil filling port 11 located at the bottom at this time, and drip onto the surface of the guide wheel 20 and the inside of the wire nozzle 7, so as to lubricate the guide wheel 20 and the wire nozzle 7, so as to facilitate the next use of the guide wheel 20 and the wire nozzle 7 to guide and transport the copper wire 8.

[0042] After the winding machine is cleaned, in order to maintain the cleanliness of the guide wheel 20, the wire nozzle 7 and the winding fixture 2 at the bottom of the winding shaft 4, the first electric slider 22 can be used to drive the moving part 6 to press the two contact switches 16, control the driving mechanism inside the winding shaft 4 to start, and drive the two support plates 15 to rotate downward to an inclined state. Then, the external inflation mechanism inflates the air bags 14 on both sides of the two support plates 15, so that after the four air bags 14 are inflated, they can be enclosed into an umbrella-shaped protective cover to protect the guide wheel 20, the wire nozzle 7 and the winding fixture 2, and prevent external dust from adhering to the surface of the guide wheel 20, the wire nozzle 7 and the winding fixture 2, affecting the subsequent winding work of the stator body 3.

[0043] After the winding machine finishes working, the two support plates 15 can also be controlled to rotate downward, and after the multiple air bags 14 are inflated and docked, the arc groove 18 at one end of the two support plates 15 away from the hinged part is abutted against the winding column on the top of the winding clamp 2. While preventing the guide wheel 20, the wire mouth 7 and the winding clamp 2 from dust, the position of the winding shaft 4 can also be limited and fixed to prevent the staff from accidentally touching the winding machine switch and the winding shaft 4 from moving, causing the winding shaft 4 and the wire mouth 7 to collide with other components and cause damage.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A large-scale generator stator automatic winding device, comprising a frame (1) and a winding shaft (4), characterized in that: The winding shaft (4) is mounted on the frame (1), a winding fixture (2) is further provided below the winding shaft (4), a stator body (3) is clamped and mounted on the top of the winding fixture (2), a moving part (6) is slidably mounted on the outer wall of the winding shaft (4), two clamping plates (17) for limiting and clamping the copper wire (8) are mounted on the top of the moving part (6), and a lubricating mechanism for cleaning and lubricating the surface of the copper wire (8) is mounted on the top of the two clamping plates (17), and a protective mechanism for protecting the winding fixture (2) is also mounted on the lower end of the winding shaft (4); The lubrication mechanism comprises two semi-cylindrical shells (10), which can be connected and assembled into a cylindrical shell (10), and the sides of the two shells (10) close to each other are each provided with a groove for inserting the copper wire (8), and the insides of the two shells (10) are each provided with a chamber for containing lubricating oil, and the inner bottom surfaces of the two chambers are each provided with a sealing block (29) through a spring (28), and the outer walls of the two sealing blocks (29) on the side away from the spring (28) are each provided with an abutment block (30), and the inner walls of the grooves of the two shells (10) are each provided with an oil outlet (27) for the abutment block (30) to move; The protection mechanism comprises two support plates (15), the two support plates (15) are symmetrically hinged on the outer wall of the bottom end of the winding shaft (4), and the outer walls on both sides opposite to each other of the two support plates (15) are both equipped with a quarter-circular air bag (14).

2. The automatic stator winding device for a large generator according to claim 1, characterized in that: A movable seat (19) is slidably mounted on the bottom end of the winding shaft (4), a guide wheel (20) is rotatably mounted inside the movable seat (19), a rotating frame (21) is rotatably mounted on the winding shaft (4) below the guide wheel (20), and a wire nozzle (7) is detachably mounted on the bottom end of the rotating frame (21) via two limiting bolts.

3. The automatic stator winding device for a large generator according to claim 1, characterized in that: The outer wall of the winding shaft (4) is provided with two slide grooves (13), the inner wall of the moving member (6) is provided with a first electric slider (22) which can move up and down in the two slide grooves (13), the top of the moving member (6) is provided with a circular groove (23), and a second electric slider (24) is installed inside the circular groove (23).

4. The automatic stator winding device for a large generator according to claim 3, characterized in that: A fixed block (25) is installed on the top of the second electric slider (24), and a rotating plate (26) is rotatably installed on the outer wall of the fixed block (25) away from the winding shaft (4) via a rotating shaft, and one end of the two clamping plates (17) close to the winding shaft (4) is hinged to the outer wall of the rotating plate (26).

5. The automatic stator winding device for a large generator according to claim 1, characterized in that: The top ends of the two shells (10) are both conical, and cleaning pads (12) are installed on the outer walls of the two shells (10) close to the conical top ends.

6. The automatic stator winding device for a large generator according to claim 1, characterized in that: A lubrication box (5) is installed on the top of the frame (1), an oil delivery pipe (9) is installed on the outer wall of the lubrication box (5) close to the two shells (10), and oil filling ports (11) adapted to the oil delivery pipe (9) are provided on the tops of the two shells (10).

7. The automatic stator winding device for a large generator according to claim 1, characterized in that: An arc groove (18) is provided at one end of the two support plates (15) away from the hinged portion, and the two arc grooves (18) are adapted to the winding column at the top end of the winding fixture (2).

8. The automatic stator winding device for a large generator according to claim 1, characterized in that: Contact switches (16) are installed at the bottom end of the winding shaft (4) near the two support plates (15). When the moving member (6) moves downward to the bottom end of the slide groove (13) through the first electric slider (22), the moving member (6) can press the two contact switches (16).

Images